From 2084e19a0c267409ba41f4ba8b856dc653b5edcc Mon Sep 17 00:00:00 2001
From: rok <acadx0@gmail.com>
Date: Wed, 22 May 2024 16:41:31 +0900
Subject: [PATCH] CI configs: add nix flake

---
 flake.lock     | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++
 flake.nix      | 66 ++++++++++++++++++++++++++++++++++++++++
 gomod2nix.toml | 27 +++++++++++++++++
 3 files changed, 175 insertions(+)
 create mode 100644 flake.lock
 create mode 100644 flake.nix
 create mode 100644 gomod2nix.toml

diff --git a/flake.lock b/flake.lock
new file mode 100644
index 000000000..75fb935e9
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,82 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gomod2nix": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1716202913,
+        "narHash": "sha256-zjPNXI4DWBOrPsrK8u/XTsm5Q36quONQvz0jhAKHEeg=",
+        "owner": "nix-community",
+        "repo": "gomod2nix",
+        "rev": "4702caff8e201f4c98fe3583637a930d253447c8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "gomod2nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1716218643,
+        "narHash": "sha256-i/E7gzQybvcGAYDRGDl39WL6yVk30Je/NXypBz6/nmM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a8695cbd09a7ecf3376bd62c798b9864d20f86ee",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "gomod2nix": "gomod2nix",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 000000000..09ab30259
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,66 @@
+{
+  description = "elvish";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
+    gomod2nix = {
+      url = "github:nix-community/gomod2nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, gomod2nix }:
+    let
+      allSystems = [
+        "x86_64-linux" # 64-bit Intel/AMD Linux
+        "aarch64-linux" # 64-bit ARM Linux
+        "x86_64-darwin" # 64-bit Intel macOS
+        "aarch64-darwin" # 64-bit ARM macOS
+      ];
+      forAllSystems = f: nixpkgs.lib.genAttrs allSystems (system: f {
+        inherit system;
+        pkgs = import nixpkgs { inherit system; };
+      });
+    in
+    {
+      packages = forAllSystems ({ system, pkgs, ... }:
+        let
+          buildGoApplication = gomod2nix.legacyPackages.${system}.buildGoApplication;
+        in
+        rec {
+          default = elvish;
+
+          elvish = buildGoApplication {
+            name = "elvish";
+            src = ./.;
+            go = pkgs.go_1_21;
+            pwd = ./.;
+            subPackages = [ "cmd/elvish" ];
+            CGO_ENABLED = 0;
+            flags = [
+              "-trimpath"
+            ];
+            ldflags = [
+              "-s"
+              "-w"
+              "-extldflags -static"
+            ];
+          };
+        });
+
+      # `nix develop` provides a shell containing development tools.
+      devShell = forAllSystems ({ system, pkgs }:
+        pkgs.mkShell {
+          buildInputs = with pkgs; [
+            go_1_21
+            gomod2nix.legacyPackages.${system}.gomod2nix
+            gopls
+          ];
+        });
+
+      overlays.default = final: prev: {
+        elvish = self.packages.${final.stdenv.system}.elvish;
+      };
+    };
+}
+
diff --git a/gomod2nix.toml b/gomod2nix.toml
new file mode 100644
index 000000000..3209e340c
--- /dev/null
+++ b/gomod2nix.toml
@@ -0,0 +1,27 @@
+schema = 3
+
+[mod]
+  [mod."github.com/creack/pty"]
+    version = "v1.1.21"
+    hash = "sha256-pjGw6wQlrVhN65XaIxZueNJqnXThGu00u24rKOLzxS0="
+  [mod."github.com/google/go-cmp"]
+    version = "v0.6.0"
+    hash = "sha256-qgra5jze4iPGP0JSTVeY5qV5AvEnEu39LYAuUCIkMtg="
+  [mod."github.com/mattn/go-isatty"]
+    version = "v0.0.20"
+    hash = "sha256-qhw9hWtU5wnyFyuMbKx+7RB8ckQaFQ8D+8GKPkN3HHQ="
+  [mod."github.com/sourcegraph/jsonrpc2"]
+    version = "v0.2.0"
+    hash = "sha256-UPJQN/TSg9CjRj0239EV9dbZTwe7grOCf8lFWMkqo8U="
+  [mod."go.etcd.io/bbolt"]
+    version = "v1.3.9"
+    hash = "sha256-98cKiMZcxl11laO3IiRHnhSgh7mEjl0iKlPxsSPdbww="
+  [mod."golang.org/x/sync"]
+    version = "v0.6.0"
+    hash = "sha256-LLims/wjDZtIqlYCVHREewcUOX4hwRwplEuZKPOJ/HI="
+  [mod."golang.org/x/sys"]
+    version = "v0.17.0"
+    hash = "sha256-e0qnE+SitE02IzvnJKI4Uzpq9EOZY+zvE8Wf5b2e6Kg="
+  [mod."pkg.nimblebun.works/go-lsp"]
+    version = "v1.1.0"
+    hash = "sha256-mJS7tsR4bPOIcHpvIsdKHQvZxpgFRm3hBSMVBMFcDZI="